US2932721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic arc welding with stabilized inert gas shielding
Assignee: Babcock and Wilcox Co
•
Filing: 1952-02-14
•
Granted: 1960-04-12
•
Expires: 1972-02-14
Abstract
No abstract record available.
Inventors
- 👤 Lambert F Kooistra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:14
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD OF ELECTRIC ARE FUSION WELDING INCLUDING MAINTAINING AN ARE BETWEEN A LOW CARBON STEEL ELECTRODE, HAVING A CARBON CONTENT OF LESS THAN 0.35 PERCENT, AND THE WORK, AND SHIELDING THE ARC WITH AN INERT MONATOMIC GAS IN ADMIXTURE WITH FROM 1% TO 20% OF A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON MONOXIDE AND CARBON DIOXIDE.
Claim 2
Independent Claim
59 words
A METHOD OF ELECTRIC ARE FUSION WELDING INCLUDING MAINTAINING AN ARE BETWEEN A LOW CARBON STEEL ELECTRODE, HAVING A CARBON CONTENT OF LESS THAN 0.35 PERCENT, AND THE WORK, AND SHIELDING THE ARC WITH AN INERT MONATOMIC GAS IN ADMIXTURE WITH FROM 1% TO 20% OF A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON MONOXIDE AND CARBON DIOXIDE.
References Cited (Backward Citations)
GB191910A
Cited
US2473600A
Cited
US2590084A
Cited
US2497631A
Cited
US2504867A
Cited
US2544711A
Cited
US2576793A
Cited
US2694764A
Cited
US2694763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |